1. Characteristics of Life
Gallery Walk

2. What is Life?
Know the 8 characteristics of life!

4. For example, Robert Hooke observed the First Cells
cork through an early microscope- illustration shown on the left.
Hooke called the individual units cells, after the monk’s rooms in a monastery.
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5. Cork Cells
Compare the photograph of cork cells viewed through a modern light microscope to Hooke’s drawing.
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6. Plant Cell Light Microscope
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7. Animal Cell Light Image
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8. Animal Cell EM Image
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9. Animal Tissue
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10. Plant Tissue
What two structures do plant cells have that animal cells lack?
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11. The cell is the basic unit of life.
Anton van Leeuwenhoek ( )

12. Single Cell Life Form
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13. Cells come from cells.
Rudolf Ludwig Karl Virchow ( )

14. so…to review cell theory
All life forms are made from one or more cells.
Cells only arise from pre-existing cells.
The cell is the smallest form of life.

15. small
cells tissues organs systems individuals populations communities ecosystems biosphere
LARGE

17. Living Things Reproduce
All living things come from other living things. For example, a zebra will produce offspring through sexual reproduction.

18. For example, you inherit part of your parents DNA which determine things like hair color and eye color.

19. For example, children age as the years progress

21. Living Things Metabolize
For example, your body needs food in order to break it down into smaller particles so your cells can use it for energy!

23. Respond to Stimuli
For example: your body reacts when you touch something hot or something that hurts. Nerves send signals to your brain that tells your brain to stop activity.

25. For example
Your body tries to maintain homeostasis when you are sick with a fever. You may sweat in order to cool down your internal body temperature.

27. Living Things Evolve
For example, Dinosaurs with feathers - In northern China, evidence was found of feathered dinosaurs that did not fly. The feathers may have been for insulation or looks, but not for flying.